Estimating the integrated volatility using high-frequency data with zero durations
存在零时间间隔的高频数据下积分波动率估计AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要直接研究含微观结构噪声和零时间间隔的高频数据,以及积分波动率的预平均估计。
反馈分类问题存在零时间间隔的高频数据下积分波动率估计AI 解读 ↓
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In estimating integrated volatility using high-frequency data, it is well documented that the presence of microstructure noise presents a major challenge. Recent literature has shown that the presence of multiple observations, a common feature in datasets, brings additional difficulty. In this study, we show that the preaveraging estimator is still consistent under multiple observations, and the related asymptotic distribution of the estimator is established. We also show that the preaveraging estimator based on multiple observations achieves the same asymptotic efficiency as the “ideal” estimator that assumes we know the exact trading times of all transactions. Simulation studies support the theoretical results, and we also illustrate the estimator using real data analysis.